NTA JEE Mains 29th Jan 2025 Shift 2

Consider the equilibrium $$CO(g)+3H_{2}(g)\rightleftharpoons CH_{4}(g)+H_{2}O(g)$$ If the pressure applied over the system
increases by two fold at constant temperature then (A) Concentration of reactants and products increases. (B) Equilibrium will shift in forward direction. (C) Equilibrium constant increases since concentration of products increases. (D) Equilibrium constant remains unchanged as concentration of reactants and products remain same. Choose the correct answer from the options given below :

Drug X becomes ineffective after 50% decomposition. The original concentration of drug in a bottle was 16mg/mL which becomes 4mg/mL in 12 months. The expiry time of the drug in months is _________
Assume that the decomposition of the drug follows first order kinetics.

$$O_{2}$$ gas will be evolved as a product of electrolysis of : (A) an aqueous solution of $$AgNO_{3}$$ using silver electrodes. (B) an aqueous solution of $$AgNO_{3}$$ using platinum electrodes. (C) a dilute solution of $$H_{2}SO_{4}$$ using platinum electrodes. (D) a high concentration solution of $$H_{2}SO_{4}$$ using platinum electrodes. Choose the correct answer from the options given below :

Identify the homoleptic complexes with odd number of d electrons in the central metal : (A) $$[FeO_4]^{2-}$$ (B) $$[Fe(CN)_6]^{3-}$$ (C) $$ [Fe(CN)_5NO]^{2-}$$ (D) $$[CoCl_4]^{2-}$$ (E) $$ [Co(H_2O)_3F_3]$$ Choose the correct answer from the options given below :

Which one of the following, with HBr will give a phenol?

Given below are two statements : Statement (I) : NaCl is added to the ice at $$0^{\circ}C$$, present in the ice cream box to prevent the melting of ice cream. Statement (II) : On addition of NaCl to ice at $$0^{\circ}C$$ , there is a depression in freezing point. In the light of the above statements, choose the correct answer from the options given below :

Match List - I with List - II :

Choose the correct answer from the options given below :

For hydrogen like species, which of the following graphs provides the most appropriate representation of E vs Z plot for a constant n ? [E: Energy of the stationary state, Z : atomic number, n = principal quantum number]

Which one of the following reaction sequences will give an azo dye?

Identify the essential amino acids from below : (A) Valine (B) Proline (C) Lysine (D) Threonine (E) Tyrosine
Choose the correct answer from the options given below :